27313 SPENCER-STUART - Spencer Stuart, US
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS14618 AMAZON-AES - Amazon.com, Inc., US
AS16509 AMAZON-02 - Amazon.com, Inc., US
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 32828 AS27313 ORIGIN Originate: 1280 /21.68 Transit: 0 /0.00 SPENCER-STUART - Spencer Stuart, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 38294 AS27313 SPENCER-STUART - Spencer Stuart, US 5 0 0 5 0 0.00% Prefix AS Path Aggregation Suggestion 204.79.137.0/24 4777 2497 16509 14618 27313 204.79.138.0/24 4777 2497 174 27313 204.79.139.0/24 4777 2516 3356 27313 204.79.140.0/24 4777 2497 16509 27313 204.79.172.0/24 4777 2516 3356 27313
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS27313 2 More Specifics 5 Total Advertisements SPENCER-STUART - Spencer Stuart, US
204.79.138.0/24 204.79.138.0/23
204.79.139.0/24 204.79.138.0/23
whois: 402332
IANA has recorded AS27313 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS27313\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 27313
ASName: SPENCER-STUART
ASHandle: AS27313
RegDate: 2008-05-12
Updated: 2024-10-22
Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref: https://rdap.arin.net/registry/autnum/27313
OrgName: Spencer Stuart
OrgId: SPENCE
Address: 353 N. Clark
Address: Suite 2400
City: Chicago
StateProv: IL
PostalCode: 60654
Country: US
RegDate: 1994-12-14
Updated: 2021-12-14
Comment: Send abuse reports to abuse@spencerstuart.com. Privacy Policy is at
Comment: http://www.spencerstuart.com
Ref: https://rdap.arin.net/registry/entity/SPENCE
ReferralServer: rwhois://rwhois1.spencerstuart.com:4321
OrgTechHandle: CHOIK12-ARIN
OrgTechName: Choi, Kyung
OrgTechPhone: +1-312-822-0088
OrgTechEmail: kchoi@spencerstuart.com
OrgTechRef: https://rdap.arin.net/registry/entity/CHOIK12-ARIN
OrgNOCHandle: MANCU21-ARIN
OrgNOCName: Mancuso, Adam
OrgNOCPhone: +1-312-371-7297
OrgNOCEmail: amancuso@spencerstuart.com
OrgNOCRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
OrgDNSHandle: CHOIK12-ARIN
OrgDNSName: Choi, Kyung
OrgDNSPhone: +1-312-822-0088
OrgDNSEmail: kchoi@spencerstuart.com
OrgDNSRef: https://rdap.arin.net/registry/entity/CHOIK12-ARIN
OrgAbuseHandle: MANCU21-ARIN
OrgAbuseName: Mancuso, Adam
OrgAbusePhone: +1-312-371-7297
OrgAbuseEmail: amancuso@spencerstuart.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
OrgRoutingHandle: DRR50-ARIN
OrgRoutingName: Romanski, Doug Rudolph
OrgRoutingPhone: +1-312-396-3703
OrgRoutingEmail: dromanski@spencerstuart.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
OrgRoutingHandle: ZS51-ARIN
OrgRoutingName: Spencer Stuart
OrgRoutingPhone: +1-312-822-0088
OrgRoutingEmail: secops@spencerstuart.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/ZS51-ARIN
OrgRoutingHandle: CHOIK12-ARIN
OrgRoutingName: Choi, Kyung
OrgRoutingPhone: +1-312-822-0088
OrgRoutingEmail: kchoi@spencerstuart.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/CHOIK12-ARIN
OrgNOCHandle: RAJAY2-ARIN
OrgNOCName: Raja, Yasir
OrgNOCPhone: +1-312-396-3765
OrgNOCEmail: yraja@spencerstuart.com
OrgNOCRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
OrgTechHandle: DRR50-ARIN
OrgTechName: Romanski, Doug Rudolph
OrgTechPhone: +1-312-396-3703
OrgTechEmail: dromanski@spencerstuart.com
OrgTechRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
OrgTechHandle: ZS51-ARIN
OrgTechName: Spencer Stuart
OrgTechPhone: +1-312-822-0088
OrgTechEmail: secops@spencerstuart.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZS51-ARIN
OrgAbuseHandle: DRR50-ARIN
OrgAbuseName: Romanski, Doug Rudolph
OrgAbusePhone: +1-312-396-3703
OrgAbuseEmail: dromanski@spencerstuart.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
OrgAbuseHandle: ZS51-ARIN
OrgAbuseName: Spencer Stuart
OrgAbusePhone: +1-312-822-0088
OrgAbuseEmail: secops@spencerstuart.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ZS51-ARIN
OrgDNSHandle: ZS51-ARIN
OrgDNSName: Spencer Stuart
OrgDNSPhone: +1-312-822-0088
OrgDNSEmail: secops@spencerstuart.com
OrgDNSRef: https://rdap.arin.net/registry/entity/ZS51-ARIN
OrgDNSHandle: DRR50-ARIN
OrgDNSName: Romanski, Doug Rudolph
OrgDNSPhone: +1-312-396-3703
OrgDNSEmail: dromanski@spencerstuart.com
OrgDNSRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
OrgRoutingHandle: RAJAY2-ARIN
OrgRoutingName: Raja, Yasir
OrgRoutingPhone: +1-312-396-3765
OrgRoutingEmail: yraja@spencerstuart.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
OrgDNSHandle: MANCU21-ARIN
OrgDNSName: Mancuso, Adam
OrgDNSPhone: +1-312-371-7297
OrgDNSEmail: amancuso@spencerstuart.com
OrgDNSRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
OrgNOCHandle: ZS51-ARIN
OrgNOCName: Spencer Stuart
OrgNOCPhone: +1-312-822-0088
OrgNOCEmail: secops@spencerstuart.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ZS51-ARIN
OrgAbuseHandle: CHOIK12-ARIN
OrgAbuseName: Choi, Kyung
OrgAbusePhone: +1-312-822-0088
OrgAbuseEmail: kchoi@spencerstuart.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/CHOIK12-ARIN
OrgDNSHandle: RAJAY2-ARIN
OrgDNSName: Raja, Yasir
OrgDNSPhone: +1-312-396-3765
OrgDNSEmail: yraja@spencerstuart.com
OrgDNSRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
OrgNOCHandle: CHOIK12-ARIN
OrgNOCName: Choi, Kyung
OrgNOCPhone: +1-312-822-0088
OrgNOCEmail: kchoi@spencerstuart.com
OrgNOCRef: https://rdap.arin.net/registry/entity/CHOIK12-ARIN
OrgTechHandle: MANCU21-ARIN
OrgTechName: Mancuso, Adam
OrgTechPhone: +1-312-371-7297
OrgTechEmail: amancuso@spencerstuart.com
OrgTechRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
OrgTechHandle: RAJAY2-ARIN
OrgTechName: Raja, Yasir
OrgTechPhone: +1-312-396-3765
OrgTechEmail: yraja@spencerstuart.com
OrgTechRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
OrgAbuseHandle: RAJAY2-ARIN
OrgAbuseName: Raja, Yasir
OrgAbusePhone: +1-312-396-3765
OrgAbuseEmail: yraja@spencerstuart.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
OrgRoutingHandle: MANCU21-ARIN
OrgRoutingName: Mancuso, Adam
OrgRoutingPhone: +1-312-371-7297
OrgRoutingEmail: amancuso@spencerstuart.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
OrgNOCHandle: DRR50-ARIN
OrgNOCName: Romanski, Doug Rudolph
OrgNOCPhone: +1-312-396-3703
OrgNOCEmail: dromanski@spencerstuart.com
OrgNOCRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
RNOCHandle: RAJAY2-ARIN
RNOCName: Raja, Yasir
RNOCPhone: +1-312-396-3765
RNOCEmail: yraja@spencerstuart.com
RNOCRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
RAbuseHandle: DRR50-ARIN
RAbuseName: Romanski, Doug Rudolph
RAbusePhone: +1-312-396-3703
RAbuseEmail: dromanski@spencerstuart.com
RAbuseRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
RNOCHandle: MANCU21-ARIN
RNOCName: Mancuso, Adam
RNOCPhone: +1-312-371-7297
RNOCEmail: amancuso@spencerstuart.com
RNOCRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
RTechHandle: DRR50-ARIN
RTechName: Romanski, Doug Rudolph
RTechPhone: +1-312-396-3703
RTechEmail: dromanski@spencerstuart.com
RTechRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
RTechHandle: MANCU21-ARIN
RTechName: Mancuso, Adam
RTechPhone: +1-312-371-7297
RTechEmail: amancuso@spencerstuart.com
RTechRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
RNOCHandle: DRR50-ARIN
RNOCName: Romanski, Doug Rudolph
RNOCPhone: +1-312-396-3703
RNOCEmail: dromanski@spencerstuart.com
RNOCRef: https://rdap.arin.net/registry/entity/DRR50-ARIN
RAbuseHandle: RAJAY2-ARIN
RAbuseName: Raja, Yasir
RAbusePhone: +1-312-396-3765
RAbuseEmail: yraja@spencerstuart.com
RAbuseRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
RTechHandle: RAJAY2-ARIN
RTechName: Raja, Yasir
RTechPhone: +1-312-396-3765
RTechEmail: yraja@spencerstuart.com
RTechRef: https://rdap.arin.net/registry/entity/RAJAY2-ARIN
RAbuseHandle: MANCU21-ARIN
RAbuseName: Mancuso, Adam
RAbusePhone: +1-312-371-7297
RAbuseEmail: amancuso@spencerstuart.com
RAbuseRef: https://rdap.arin.net/registry/entity/MANCU21-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Found a referral to rwhois1.spencerstuart.com:4321.